The editorial critical of the appointment of William “Mo” Cowan as interim senator understates the extensive experience that Cowan has acquired on a broad range of government issues — experience that makes him eminently qualified to serve (“In naming top aide to Senate, Patrick lessens state’s clout,” Jan. 31). Matters on immigration, education, the environment, transportation infrastructure, and fiscal policy have all been a major part of his portfolio in state government. He is well prepared.

Many will recall the improbable journey that Deval Patrick started from Milton to the corner office under the golden dome. By example and now by deed, the governor has demonstrated that talent can be found well beyond the branded and celebrity candidates.

We should not only applaud this appointment but should encourage others with political and business influence to make similar appointments and hires. The challenges facing our nation, in politics and business, demand nothing less.

Richard L. Taylor

Newton

The writer was secretary of transportation of Massachusetts under Governor William Weld.